Doug in competitive simply does not feel competitive after his rework. We only see him in cheesy comps as Doug is remotely viable as a support brawler but he is so silly in execution. Resorting to specific interactions like Doug hyper + Janet, or Gray and such.

Before his rework, Doug has been deemed the worst brawler in competitive as he had no way to charge his super. The super itself is quirky but a game changer when well timed but has its counter play.

What Doug can do that can't really be done with other support brawlers, is delete assassins. In those ranked games where the enemy spams assassins, say Kenji + Mortis? Doug will tear through that, as a support brawler Doug is comically good against assassins and almost feels like an anti aggro. Other support brawlers can defend themselves against aggression but they're not good against aggression at least not to this level.

The problem is, thats Dougs ONLY good matchup. He can't do anything against anyone with range. He has no approach tools to deal with snipers or throwers. He gets outranged easily so hes gonna feed a lot of mid range brawlers like Lou, Griff or Bea. Doug isn't even \[TITLE CARD\] at close range since Frank, BiBi, & El Primo still counter him. Since Doug had no way to charge his super, every support brawler is automatically better than him.

After the "rework" not much has changed. Dougs range would be acceptable if he was a tank, but hes called a support brawler and really lacks the range to do so. Because Doug has to get so close to his teammates to MANUALLY heal them (Gene & Pam does it automatically) Doug is very easily countered by anti clump brawlers, like Squeak, Frank, Belle even Jessie, Mandy and Grom. Those brawlers were always good against supports to an extent since they have to group up but at least healers like Poco & Byron have some range so they're not AS vulnerable as Doug who has to hug them. Now its at least possible to get Dougs super after the healing trait.

So what can Doug do that other support brawlers can't? Delete assassins. In mid rank games where your teammate goes Barley & Mandy into a Lily, Doug is very good here as he counters Lily but also has the healing to cover his teammates and protect them similar to Buster in a sense. Pam does come close as an anti aggro support, but shes far more competent as a support brawler and has the range to compete with other range brawlers like Max, Gus or Janet as a standalone brawler without being a burden by herself. Her control automatically makes her solid in gemgrab & hotzone. Dougs non cheese niche is kinda like a healer Buster. Heal your teammates & protect them from assassins if they go vulnerable brawlers like Squeak, Grom etc. 

The problem is, pros don't play like that. They don't second pick Lily & they don't pick Mandy against assassins... or at all. They play assassins but they don't spam them as much as casuals. Theres no competitive game where someone picks a brawler vulnerable against aggression against an aggro brawler. But if whatever reason that happens, Doug is very good here as he can protect/heal his teammates while addressing the assassin. In pro play it is true Dougs only good as a cheese brawler and its unlikely that won't be the case. 

What a non cheese Doug game might look like